scholarly journals Damage to the root after tooth movement towards a temporary anchorage device: An animal pilot study

2012 ◽  
Vol 7 (2) ◽  
pp. 171-178 ◽  
Author(s):  
Cheng-Tsung Huang ◽  
Eddie Hsiang-Hua Lai ◽  
Hao-Hueng Chang ◽  
Bei-En Chang ◽  
Yaun-Hou Chen ◽  
...  
Keyword(s):  
Pilot Study ◽  
Tooth Movement ◽  
Temporary Anchorage Device

scholarly journals Saliva Leptin Levels in Tooth Movement during Initial Stage of Orthodontic Alignment: A Pilot Study

2017 ◽  
Vol 16 ◽  
pp. 1-8
Author(s):  
Noraini Abu Bakar ◽  
Wisam Kamil ◽  
Lina Al Bayati ◽  
Basma Ezzat Mustafa
Keyword(s):  
Pilot Study ◽  
Mechanical Stress ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Biologically Active ◽  
Orthodontic Appliances ◽  
Initial Alignment ◽  
Periodontal Tissues ◽  
Before And After

Introduction: During orthodontic tooth movement, the early response of periodontal tissues to mechanical stress is an acute inflammatory reaction. Mechanical stress from orthodontic appliances is believed to induce cells in the periodontal ligament (PDL) to form biologically active substances, such as enzymes and cytokines, responsible for connective tissue remodeling (Nishijima Y et al 2006). Leptin, a polypeptide hormone has been classified as a cytokine (Zhang et al 1994). Earlier findings concluded that leptin at high local concentrations protects the host from inflammation and infection as well as maintaining bone levels. It has been also suggested that leptin plays a significant role in bone formation by its direct effect on osteoblasts (Alparslan et al 2010). This pilot study aimed to study leptin in saliva and its association with tooth movement during initial orthodontic alignment. Objectives: To determine if there are any differences in saliva leptin level before and after orthodontic alignment. Material and methods: Ten orthodontic patients (7 girls and 3 boys; mean age, 16.76 ± 1.1 years) with crowding (up to 5mm) that required orthodontic fixed appliances, on a non-extraction basis as part of the treatment plan, were recruited in this longitudinal study. Orthodontic study models were constructed at baseline and at 6- weeks after orthodontic treatment commenced. Full fixed orthodontic appliances with initial 0.014” Nickel Titanium archwire placed. The amount of crowding was measured, before and after initial alignment with an electronic digital caliper (Max-Cal, Japan Micrometer Ltd, Tokyo, Japan) with an accuracy of up to 0.01mm. Unstimulated morning saliva sample were collected at all visits, after at least an 8-hour period of fasting and no-toothbrushing. After centrifugation (4000x g;10min), the samples were stored at -25C and tested using Leptin Abnova LEP Human ELISA kit (KA3080) which was subsequently analyzed. Subjects’ periodontal health status was also monitored throughout the study. Ethical approval (ID IREC 262) was received on 7th April 2014 from International Islamic University Malaysia Research Ethics Committee (IREC). Results: Leptin concentration in saliva was significantly decreased in a time-dependant manner (t(9)=8.60, p<0.001), from before orthodontic treatment (7016.45± 425.15 pg/mL) and 6 weeks after bond-up (4901.92±  238.64 pg/mL). Conclusion: Leptin concentration in saliva is decreased during orthodontic tooth movement in initial alignment stage.

scholarly journals Identification of Gingival Microcirculation Using Laser Doppler Flowmetry in Patients with Orthodontic Treatment—A Longitudinal Pilot Study

Medicina ◽  
2021 ◽  
Vol 57 (10) ◽  
pp. 1081
Author(s):  
Martha Alicia Laredo-Naranjo ◽  
Nuria Patiño-Marín ◽  
Gabriel Alejandro Martínez-Castañón ◽  
Carlo Eduardo Medina-Solís ◽  
Carolina Velázquez-Hernández ◽  
...  
Keyword(s):  
Pilot Study ◽  
Laser Doppler Flowmetry ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Inflammatory Responses ◽  
Laser Doppler ◽  
Time Intervals ◽  
Depth Level ◽  
Doppler Flowmetry ◽  
Basal Flow

Background and Objectives: Orthodontic tooth movement is associated with inflammatory responses. The aim of this study was to identify gingival microcirculation using laser Doppler flowmetry in patients with orthodontic treatment. Materials and Methods: A longitudinal pilot study was performed. The participants were selected using a non-probability consecutive sampling. Of the twenty-five subjects, a total of six (four women and two men) complied with the criteria. Before and during the treatment, the oral hygiene index, gingival index, probing depth, level of epithelial attachment, and gingival microcirculation were evaluated with laser Doppler flowmetry (integrated parameters: 1. integrated primary basal flow (IPBF), 2. integrated total secondary real flow (ITSRF), and 3. difference between integration (DBI)) in all of the participants). Results: (a) An increase in gingival blood flow was identified at all time intervals with different arches during orthodontic treatment. (b) The IPBF and ITSRF (with treatment) identified after 20 min (treatment initial stage) were compared with the different time intervals, and we observed an increase in gingival perfusion at the 24th, 48th, and 72nd hours in some arches. (b) In the DBI, we found statistically significant differences (p < 0.005) in the Nitinol group of 0.016 inches among all the time intervals (24 h, 48 h, and 72 h) within the 30-day interval, observing a flow increase three times greater than the basal flow after 30 days. Conclusions: Healthcare professionals must identify the inflammatory processes in treatment to observe and discontinue use of harmful methods in clinical practice.

scholarly journals Molecular Markers of Dental Pulp Tissue during Orthodontic Tooth Movement: A Pilot Study

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Rohaya Megat Abdul Wahab ◽  
Shahrul Hisham Zainal Ariffin ◽  
Wong Woan Yeen ◽  
Nurul Atikah Ahmad ◽  
Sahidan Senafi
Keyword(s):  
Molecular Markers ◽  
Pilot Study ◽  
Differentially Expressed Genes ◽  
Dental Pulp ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Differentially Expressed ◽  
Pulp Tissue ◽  
Molecular Changes ◽  
Dental Pulp Tissue

Three specific orthodontic tooth movement genes, that is,FCRL1,HSPG2, andLAMB2were detected at upper first premolar (with appliance) dental pulp tissue by using GeneFishing technique as compared to lower first premolar (without appliance). These three differentially expressed genes have the potential as molecular markers during orthodontic tooth movement by looking at molecular changes of pulp tissue.

Hormonal effects on orthodontic tooth movement in cats—A pilot study

1972 ◽  
Vol 62 (1) ◽  
pp. 95-96 ◽  
Author(s):  
Zeev Davidovitch ◽  
David Musich ◽  
Marion Doyle
Keyword(s):  
Pilot Study ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Hormonal Effects

scholarly journals The Benefit System and its scope in contemporary orthodontic protocols

2015 ◽  
Vol 5 ◽  
pp. 174-180 ◽  
Author(s):  
Benedict Wilmes ◽  
Jan Willmann ◽  
Bruce Stocker ◽  
Dieter Drescher
Keyword(s):  
Tooth Movement ◽  
Insertion Site ◽  
Alveolar Process ◽  
Mini Implants ◽  
Root Injury ◽  
Different Types ◽  
Cost Efficient ◽  
Temporary Anchorage Device ◽  
Root Contact

Currently, the alveolar process is the most preferred insertion site for orthodontic mini-implants. However, due to the varying bone quality and the risk of root contact, the survival rate of implants inserted in the alveolar ridge still needs improvement. Other regions, such as the anterior palate and the mental region provide much better conditions for temporary anchorage device (TAD) insertion since the amount and quality of the available bone are far superior. Mini-implants with different types of abutments and connectors allow the construction of versatile and cost efficient appliances for a large variety of orthopedic and orthodontic applications. Utilizing TAD’s in the anterior palate and the mental region eliminates the risk of root injury and takes the implants out of the path of tooth movement. The design of the interchangeable abutment system provides the orthodontist with a skeletal anchorage system that integrates easily into clinical practice and allows treatment of cases that were difficult or impossible to treat previously.

scholarly journals Mini-Implants in the Anchorage Armamentarium: New Paradigms in the Orthodontics

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Masaru Yamaguchi ◽  
Toshihiro Inami ◽  
Ko Ito ◽  
Kazutaka Kasai ◽  
Yasuhiro Tanimoto
Keyword(s):  
Treatment Outcomes ◽  
Surgical Procedure ◽  
Tooth Movement ◽  
Good Control ◽  
Clinical Applications ◽  
Great Emphasis ◽  
Skeletal Anchorage ◽  
Mini Implants ◽  
Temporary Anchorage Device

Paradigms have started to shift in the orthodontic world since the introduction of mini-implants in the anchorage armamentarium. Various forms of skeletal anchorage, including miniscrews and miniplates, have been reported in the literature. Recently, great emphasis has been placed on the miniscrew type of temporary anchorage device (TAD). These devices are small, are implanted with a relatively simple surgical procedure, and increase the potential for better orthodontic results. Therefore, miniscrews not only free orthodontists from anchorage-demanding cases, but they also enable clinicians to have good control over tooth movement in 3 dimensions. The miniplate type also produces significant improvements in treatment outcomes and has widened the spectrum of orthodontics. The purpose of this paper is to update clinicians on the current concepts and versatile uses and clinical applications of skeletal anchorage in orthodontics.

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